Quality Control and
Data Processing

The QC group processes a stream of science-grade data products for selected VLT instruments. They are created using certified pipelines and certified master calibrations. Find an overview of the current streams here.

The MATISSE pipeline is available to the community here . It is used to assess the quality of the observations, and to monitor the health of the MATISSE instrument on short and longer time scales when enough data have been accumulated.

Calibration Raw Data

The following table contains an overview of the raw calibration files for MATISSE. The data types are identified with the DPR TYPE keyword of the fits headers.

frame	DPR TYPE	DPR TECH	Purpose	frequency	number of files	comment	frame
DARK	DARK	IMAGE,DETCHAR	BADPIX	6 months or after_intervention	1	AQUARIUS
FLAT	FLAT	IMAGE,DETCHAR	FLATFIELD	6 months or after_intervention	8	AQUARIUS
NONLINEARITY	FLAT	IMAGE,DETCHAR	NONLINEARITY	6 months or after_intervention	8	AQUARIUS
DARK	DARK	IMAGE,DETCHAR	BADPIX	6 months or after_intervention	16	HAWAII-R2G/FAST
FLAT	FLAT	IMAGE,DETCHAR	FLATFIELD	6 months or after_intervention	16	HAWAII-R2G/FAST
NONLINEARITY	FLAT	IMAGE,DETCHAR	NONLINEARITY	6 months or after_intervention	16	HAWAII-R2G/FAST
DARK	DARK	IMAGE,DETCHAR	BADPIX	6 months or after_intervention	9	HAWAII-R2G/SLOW
FLAT	FLAT	IMAGE,DETCHAR	FLATFIELD	6 months or after_intervention	9	HAWAII-R2G/SLOW
NONLINEARITY	FLAT	IMAGE,DETCHAR	NONLINEARITY	6 months or after_intervention	9	HAWAII-R2G/SLOW
OBS_FLATFIELD	FLAT,OFF	SPECTRUM	OPS_FLATFIELD	with science	1
SHIFT (distorsion)	DARK	IMAGE	SHIFT_MAP	6 months or after_intervention
SHIFT (distorsion)	WAVE,LAMP,PINHOLE	SPECTRUM	SHIFT_MAP	6 months or after_intervention	3	one for each pinhole
SHIFT (distorsion)	WAVE,LAMP,SLIT	SPECTRUM	SHIFT_MAP	6 months or after_intervention	1
SHIFT (distorsion)	WAVE,LAMP,FOIL	SPECTRUM	SHIFT_MAP	6 months or after_intervention	1
KAPPA MATRIX	KAPPA,BACKGROUND	SPECTRUM	KAPPA_MATRIX	monthly	4
KAPPA MATRIX	KAPPA,LAMP	SPECTRUM	KAPPA_MATRIX	monthly	4
CALIB RAW	SKY	INTERFEROMETRY	CALIB_RAW_INT	with science	2	1 file with BCD IN-IN, 1 file: OUT-OUT
CALIB RAW	STD	INTERFEROMETRY	CALIB_RAW_INT	with science	12	5 files with BCD IN-IN, 5 files: OUT-OUT, 1 file: IN-OUT, 1 file: OUT-IN